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DNA vaccine

a technology of dna and vaccine, applied in the field of dna vaccine, can solve the problems of poor achievement of hypertension treatment, patients' disobedience, non-compliance with the instruction of doctors, etc., and achieve the effect of superior

Active Publication Date: 2014-04-10
OSAKA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a better vaccine for preventing or treating lifestyle-related diseases such as high blood pressure and high cholesterol.

Problems solved by technology

One of the major causes of such poor achievements of the hypertension treatment is patients' disobedience (namely, non-compliance) to the instruction of the doctors.
Therefore, it is difficult to induce an antibody to the factor in the body of the patient even when these factors or partial peptides thereof are directly administered to the patient.
However, the effectiveness of the vaccine for lifestyle-related diseases such as hypertension and the like is not sufficiently satisfactory.

Method used

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  • DNA vaccine
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Examples

Experimental program
Comparison scheme
Effect test

example 1

1. Method

1-1. Preparation of Construct Expressing HBc-AngII

1-1-1. Preparation of HBc-AngII, HBc Sequence and TA Cloning

[0086]Plasmid pPLc3 (Accession number LMBP 2470) was purchased from BCCM / LMBP Plasmid Collection. The following primer was designed and synthesized.

HBcF(SEQ ID NO: 23)5′-gcc atg gat atc gat cct tat aaa gaa ttc ggagc-3′HBcR(SEQ ID NO: 24)5′-ggc ctc tca cta aca ttg aga ttc ccg aga ttgaga-3′H2(SEQ ID NO: 25)5′-ggg gtg gat gta tac gcg gtc agt gat agc tgg atcttc caa gtt aac-3′H3-II(SEQ ID NO: 26)5′-c cgc gta tac atc cac ccc ttt ggt gct act agcagg gac ctg gta gtc-3′

[0087]The respective primer sequences correspond to the following positions of the nucleotide sequence (SEQ ID NO: 1) encoding the Hepatitis B virus core (HBc) antigen protein.

HBc F: the 1st-33rd nucleotides.

HBc R: the 527th-556th nucleotides.

H2: nucleotide encoding 2 amino acids (IT) of the spacer and a part of AngII sequence are linked to the 221st-241st nucleotides.

H3-II: a part of AngII sequence and 3 amino...

example 2

1. Animal Experiment

[0116]In the same manner as in Example 1, each vector was administered 3 times (100 μg / μl×2 sites / time) to the back skin of 10-week-old hypertension rat (SHR) every 2 weeks using ShimaJET (trade name, SHIMADZU CORPORATION).

HBc-AngII ISS(+) group: 6 rats

HBc ISS(+) group: 4 rats

saline group:5 rats

[0117]Administered at 0 week, 2 weeks, 4 weeks, and the blood pressure measurement, serum collection and antibody titer measurement were performed at 0 week, 4 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks and 24 weeks from the start of the administration.

2. Blood Pressure Measurement by Tail-Cuff Method

(Method)

[0118]In the same manner as in Example 1, the blood pressure measurement was performed by a tail-cuff method. The measurement was performed 5-15 times per animal, and an average thereof was used.

(Results)

[0119]The HBc ISS(+) group (control) and saline group showed an increase in the blood pressure of SHR rats. On the other hand, HBc-AngII ISS(+) group showed a obviou...

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Abstract

The present invention provides a therapeutic or improving agent for a lifestyle-related disease, containing an expression vector encoding a chimeric Hepatitis B virus core antigen polypeptide inserted with an amino acid sequence containing a specific epitope of the lifestyle-related disease-related factor, wherein the amino acid sequence containing the specific epitope is inserted between the amino acid residues 80 and 81 of the hepatitis B virus core antigen polypeptide.

Description

TECHNICAL FIELD[0001]The present invention relates to a DNA vaccine effective for the treatment or prophylaxis of lifestyle-related diseases such as hypertension and the like.BACKGROUND ART[0002]It has been reported that, of the hypertension patients in US, only 35% can appropriately control the blood pressure. One of the major causes of such poor achievements of the hypertension treatment is patients' disobedience (namely, non-compliance) to the instruction of the doctors. As a therapy capable of solving the problem of non-compliance, vaccine for hypertension is drawing attention (non-patent document 1).[0003]Vaccine for hypertension is a therapeutic method for hypertension including administering an aggravation factor of hypertension, an epitope contained in the aggravation factor, or an expression vector encoding them to hypertension patients to induce an antibody to the aggravation factor in the body of the hypertension patients, thereby neutralizing the function of the aggravat...

Claims

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Application Information

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IPC IPC(8): A61K39/29A61K35/76A61K39/00
CPCA61K39/292A61K9/0019A61K39/0005A61K39/12C12N2730/10134A61K2039/54A61K2039/53C12N2730/10143C07K14/575C12N2770/32434C07K2319/00A61P3/06A61P9/12C12N7/00
Inventor MORISHITA, RYUICHINAKAGAMI, HIRONORIKORIYAMA, HIROSHINAKAGAMI, FUTOSHIYOSHIDA, NATSUKI
Owner OSAKA UNIV
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